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Lanthanide Isophthalate Metal‐Organic Frameworks: Crystal Structure, Thermal Behavior, and White Luminescence

Abstract : Two novel lanthanide metal-organic frameworks (LnMOFs), Ln1.14Na0.57(BDC)2(H2O)4H2O (Ln = La 3+ or Ce 3+ , BDC : 1,3-benzenedicarboxylate), have been synthesized under hydrothermal conditions by using a Ln 3+ coordination polymer as precursor. The crystal structure was determined from single crystal X-ray diffraction. Both compounds are isostructural and contain chains of face-sharing [LnO10] polyhedra connected by the linkers to form an anionic three-dimensional network, defining both polar and apolar channels, the latter being occupied by water molecules and Ln 3+ and Na + cations. When doped by optimized content of Eu 3+ and Tb 3+ , the La 3+ counterpart exhibits white luminescence emission with CIE parameters equal to (0.3440, 0.3735) at λexc = 321 nm, which renders the material attractive for white LED application.
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https://hal.archives-ouvertes.fr/hal-03275267
Contributor : Hélène Serier-Brault Connect in order to contact the contributor
Submitted on : Wednesday, June 30, 2021 - 7:26:51 PM
Last modification on : Wednesday, April 27, 2022 - 3:57:27 AM
Long-term archiving on: : Friday, October 1, 2021 - 7:09:03 PM

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Virgile Trannoy, Isis N'Dala-Louika, Jérôme Lhoste, Thomas Devic, Hélène Serier-Brault. Lanthanide Isophthalate Metal‐Organic Frameworks: Crystal Structure, Thermal Behavior, and White Luminescence. European Journal of Inorganic Chemistry, Wiley-VCH Verlag, 2021, 2021 (4), pp.398-404. ⟨10.1002/ejic.202000906⟩. ⟨hal-03275267⟩

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